just sort of itch your fingers and think, am i dreaming. or do a double take. like look at a wall, then look away, and back.also if your married, or just happen to have a ring on, adjust it, and sort of push your finger into your hand, witch if you where dreaming, your finger would go in.

Since the laws of physics don't apply in dreams, I usually just do the 'ol push your hand through a solid object trick. Think to yourself, "If this is a dream, then my hand should be able to push right through."

Jonathan wrote:Try to just levitate. You can do that without anyone knowing.

But what if it works? Then everyone will know!

I haven't really come across one that would be very noticeable, unless you're writing on your hand to remind yourself to do RC's. I usually combine a mental and a physical RC. I'll try to push my hand through something, then I'll try to levitate or move an object with my mind. Even if anyone notices, they'll think it's just a habit you have.

I don't know if this can be a reality check, but in every (lucid) dream i have the sky is always amazing (like in the middle of a sunset, with a blend of colors that you'll tell it's a dream), so you can look at the sky. Also, if the sun is on your skin, you can feel it, but you will feel it "different". Hope that these 2 work for you.